Physicochemical Properties of Frying Ginseng and Oils Derived from Deep-frying Ginseng
2013
Lee, K.S., CNARES, Chungnam, Republic of Korea | Kim, G.W., CNARES, Chungnam, Republic of Korea | Kim, H.H., CNARES, Chungnam, Republic of Korea | Seong, B.J., CNARES, Chungnam, Republic of Korea | Kim, S.I., CNARES, Chungnam, Republic of Korea | Han, S.H., CNARES, Chungnam, Republic of Korea | Lee, S.S., CNARES, Chungnam, Republic of Korea | Lee, G.H., Woo-Song University, Daejeon, Republic of Korea
To increase the consumption of frying ginseng, we investigated the physicochemical properties of frying ginseng and different edible oils processed through frying ginseng: soybean oil (SO), corn oil (CO), olive oil (OO), and grape seed oil (GO). We tested various parameters, including temperature (130, 160, 180, and 200oC), frying time (2.0, 2.5, 3.0, and 3.5 min), and frying amount (up to 30 times). The physicochemical properties of the fried ginseng and oils were evaluated for changes in acid value, peroxide value, free fatty acid content, acrylamide formation, color, and viscosity of oils. The acid value and peroxide value of the oils increased with frying temperature and amount. Saturated fatty acids increased and unsaturated fatty acids decreased with the amount of frying, but oleic acid in CO and GO and linoleic acid in OO increased. The concentration of acrylamide in fried ginseng increased as the frying temperature and amount increased and was the lowest in OO. The lightness and redness of the frying oil color decreased and its yellowness increased in SO and CO, but the lightness increased (redness and yellowness decreased) in OO. In particular, CO was significantly browned with increasing frying amounts. The viscosity of the frying oils increased with frying amount, with CO showing the lowest increases in viscosity of the oils. As a result, the optimal ginseng frying condition found was 2 min 30 sec at 180oC, regardless the type of oils.
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